Hand-threading shuttle



July 15, 1924. 1,501,424

W. A. TEBO HAND THREADING SHUTTLE Filed Sept. 7. 1923 Patented July 15, 192 ie WILLIAM A. TEBQ, OF ANlI-IONY, RHODE ISLAND.

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Application filed September 7, 1923. Serial No. 661,433.

guiding edges for conducting the entering thread device to a point substantially on the axial line of the shuttle bobbin.

A further object of the invention is the provision of a guard member for the thread guide, to facilitate the threading operation and also to prevent a loose thread from catching onto the guide during an operation of the shuttle.

A still further object of the invention is the provision of means in the guiding means for tensioning the thread. if desired,

With these and other objects in view, the invention consists of certain novel features of construction, as Will be more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings Figure 1 is a top view showing my'improved guide member as mounted in slots in the side walls of the shuttle.

I Figure 2 is a central sectional side eleva tion showing the thread as being led from the bobbin in the shuttle through the guide mounted therein. .i

Figure 3' shows the metal blank as cut from sheet stock which may be folded upon itself and form entering guides for the thread. i

Figure t is a face viewof the folded guide plate-asmounted'in a shuttle, the latter be- 'ing'shown insection.

Figure 5 is an edge view of the thread guiding device removed from the shuttle.

Figure 6 is a top edge view of the thread guiding device.

guiding device sectioned on line 77 of Figure 4.

, Figure 8 is an edge elevation sectioned on line 8-8 of Figure 4.

Figure 9 is a sectional edge elevation on' line'99 of Figure 4.

Figures 10 and 11 show a plan and elevatlon, respectively of a thread guide'plate showing a modified form of guard which is' formed integral with the plate to overlie the entering edge of the guide.

Figure 12 is another modification illustratmg the guiding member as formed of wire instead of sheet stock.

Figure 13 shows diagonal guiding'slots formed in the guide plates to serve as slub catchers for enlargements on the out-running yarn.

-lt is found in practice of advantage in the construction of hand threading shuttles to provide a simple and effective threading guide member and a guard member which will overlie the entering point of the thread guide to facilitate the threading operation a of the shuttle and also to serve to prevent a loose thread in the shuttle from catching in the guiding member during a weaving op eration; and the following is a detailed de scription of one construction of such guid ing'and guarding device by which the desired results may be obtained lVith reference to the drawings, 15 designates a hand threading device as being constructed of sheet stock, the same being adapted to be blanked first into the form illustrated in Figure 3, and then folded upon itself bringing the front plate 1 6 and the back plate 17 to be slightly spaced apart in vertical planes, which plates are connected together by a looped bottom portion 18 through the eye of which a fastening pin 19 may be passed for securing the devlce in the shuttle 20, the opposite edge of these plates being set intoslots formed in'the side walls of the shuttle. p The front plate 16 of this threadmg device is 7 provided with a diagonally-disp0sed thread-guiding edge 21 extending from its upper, right-hand corner 22 downwardly, on an angle substantially to the center of the plate,-or-to a point in line with the axial center of the bobbin 23 which is mounted in the shuttle, and the back plate 17 which is spaced slightly to the rear of the front plate, is provided with a cooperating, diagonallydisposed guiding edge 24 extending from the upper, left-hand edge down acrossits center portion 25, which two cooperating guide edges serve to form a guiding eye for the thread while running out from the shuttle bobbin through a slot 27 and eye 28 in the side of the shuttle. i

In order to facilitate threading of'this double guide plate, I have provided an overlying guard finger29, one end of which is riveted or otherwise secured to the inturned edge 30 of the back plate 17, as best shown in Figure 7, and this fingerextends over to close the. threading opening of the front guide plate 16. I I 1 Ordinarily, in the operation of this threading device,I set this guide guard finger 29 above the guidingfedge 31 of the guide member a distance a little less than the diameter of thethread being used, which causes the linger to spring upwardly slightly to permit the thread to pass thereunder during the threading operation.

To permit the ready passing of the thread under the end ofjthis guide finger, I have turned up the end portion at 32, see Figure 8, and I'have also set the rear edge 33 of this guidefinger a little below the edge 31 of thcdeaiide plate to guide the thread downwardly alongthe diagonal edge 21 when the thread is carried laterally across to the other side'over the point 26 to engage the cooperating, inclined'edge 24-. of the back plate causing it't'o slide down both edges to the guiding center of the plate.

In some instances when tension is to be applied to the thread, I cause these guide edges to overlap'each other, as illustrated at 40 in Figu're 11.

Instead of cutting away the opposite wall of the diagonal guiding edges of the dif 'fercntplates, narrow slots39 may be provided in either or both of the plates, as illustrated in Figure '13, to serve as slub catchers to arrest enlargements on the out-- running thread. The back and front-plates being set closev together also serve as additional o1; cooperating means for arresting slujbsor enlargements on the thread.

In some instances instead of providing a separate spring guard finger 29, I form a finger 3d integral with one edge of the rear plate and provide an opening35 in this fin ger through which an end 36 of the front plate extends to guard the threading opening.

Then again in some instances, instead of forming the guiding end guarding members of sheet stock, I formthe same'of wire as illustrated inFigure 12, in which a portion 37 of the wire is bent into'loop form over the end 38 thereof to guard the threading opening.

My improved device is extremely simple and practical in construction and efiective in its operation as by its use a shuttle may be readily threaded by hand and the thread positively prevented from looping or catching over the guide while the shuttle is in operation.

The foregoing description is directed solely towards the construction illustrated, but I desire it to. be understood that I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being defined and limited only by the terms of the appended claims.

I claim:

1. In a hand-threading shuttle, a bobbin mounted therein, a thread guide having cooperating diagonally-disposed converging threading guide members, and a guard overlying the entering opening in one of the guiding members to prevent the thread from catching on said member during the operation of the shuttle.

2. In a hand-threading shuttle, a bobbin mounted therein, a thread guide having cooperating diagonally-disposed converging threading guide members, a guard overlying the. entering opening in one of the guid" ing members and spaced therefrom a distance less than the diameter of the thread being used to prevent the thread from catching on said first member during the operation of the shuttle. I

3. In a handthreading shuttle, a bobbin mounted therein, a thread guide having cooperating diagonally-disposed converging threading guide members, a guard overly ing the entering opening to the first diagonal guiding edge, said guard having a raised portion to facilitate the entrance ofthe thread, and a portion disposed below the upper point of the first diagonal guiding edge to guide the thread thereunder.

4. In a hand-threading shuttle having a bobbin mounted therein, a thread guide comprising'a pair of cooperating guiding members having diagonally-disposed thread guiding edges set on converging angles in different vertical planes and each arranged to guide the thread in threading from its upper edge to substantially the axial center of the bobbin, and a guide member overlying the entering opening in the threading guide.

5. In a hand-threading shuttle having a bobbin mounted therein, a pair of thread guide plates having cooperating diagonallydisposed thread guiding edges set on con-- verging angles and each arranged to guide the thread in threading from its upper edge to a point adjacent the axial center of the bobbin.

6. In a hand-threading shuttle,a pair of cooperating spaced apart thread guiding plates, each having a guide eye through it for the passage of the running thread, and threading passageways in said plates out of alignment with each other leading to said guide eye.

= cooperating spaced apart plates having guide openings for the passage of the running thread, and threading passageways in said plates having diagonally-disposed guiding walls set out of alignment with each other.

9. In a hand-threading shuttle, a pair of cooperating plates spaced one forward of the other a distance substantially the diameter of the entering. thread, said plates having guide openings for the passage of the running thread, and threading passageways in said plates having diagonally disposed Walls set out of alignment with each other.

10. In a hand-threading shuttle, a pair of cooperating spaced apart plates, each having a guiding eye for the running thread, and threading openings in said plates having oppositely disposed diagonal thread guiding edges leading into said guiding eye.

11. In a hand threading shuttle having a bobbin mounted therein, a thread guide plate folded to form a pair of cooperating threadguiding members having diagonally-disposed thread guiding edges set on converging angles and each arranged to guide the thread in threading from its upper edge to a point adjacent the axial center of the bobbin.

12. In a hand-threading shuttle having a bobbin therein, a thread guide plate folded to form a pair of spaced apart cooperating guiding members set' on different vertical planes andhaving diagonally-disposed thread guiding edges set on converging angles and each arranged to guide the thread in threading from its upper edge to a point adjacent the axial center of the bobbin.

13. In a hand-threading shuttle having a bobbin mounted therein, a thread guide plate folded to form a pair of spaced apart cooperating guiding members set on different vertical planes and having diagonally-disposed thread-guiding edges set on converging angles, each being arranged to guide the thread in threading from its upper edge to substantially the axial center of the bobbin, and a pin-receiving eye formedat the fold of the plates by which the plates are locked in the shuttle body.

14. In a hand-threading shuttle having a bobbin mounted therein, a thread guide comprising a pair of cooperating guiding members having diagonally-disposed threadguiding edges set on converging angles in difierent vertical planes and each arranged to guide the thread in threading from its upper edge to a point adjacent the axial center of the bobbin, said edges being set out of alignment with each other at the thread-guiding center whereby the thread is retarded by taking a zigzag course through the plates, and a guide member overlying the entering opening in the threading guide.

In testimony whereof I afix my signature.

WILLIAM A. TEBO. 

